Document the optional "leds" node supported by the dap8211r phy.

The phy exposes three configurable led outputs, each of which can be
assigned a color, a function and a default trigger.

Signed-off-by: Artem Shimko <a.shimko.dev@gmail.com>
---
 .../bindings/net/dptel,dap8211r.yaml          | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dptel,dap8211r.yaml b/Documentation/devicetree/bindings/net/dptel,dap8211r.yaml
index 4cd0f9730d95..43425fc8e96e 100644
--- a/Documentation/devicetree/bindings/net/dptel,dap8211r.yaml
+++ b/Documentation/devicetree/bindings/net/dptel,dap8211r.yaml
@@ -20,6 +20,7 @@ description: |
     - IEEE 802.3az-2010 Energy Efficient Ethernet
     - IEEE 1588 SyncE support
     - Internal packet generator and checker for link diagnostics
+    - Three configurable LEDs (link, speed, duplex, TX/RX activity)
 
 allOf:
   - $ref: ethernet-phy.yaml#
@@ -28,6 +29,22 @@ properties:
   compatible:
     const: ethernet-phy-id0008.011b
 
+  leds:
+    type: object
+    description:
+      Optional node describing the three configurable LEDs of the PHY.
+      Each LED can be assigned a color, function and default trigger
+      (e.g. "netdev" for link/activity indication).
+    patternProperties:
+      '^led@[0-2]$':
+        type: object
+        properties:
+          reg:
+            maxItems: 1
+        required:
+          - reg
+        additionalProperties: true
+
   reg:
     maxItems: 1
 
@@ -49,6 +66,8 @@ unevaluatedProperties: false
 
 examples:
   - |
+    #include <dt-bindings/leds/common.h>
+
     mdio {
         #address-cells = <1>;
         #size-cells = <0>;
@@ -58,5 +77,24 @@ examples:
             reg = <1>;
             rx-internal-delay-ps = <1950>;
             tx-internal-delay-ps = <1950>;
+
+            leds {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                led@0 {
+                    reg = <0>;
+                    color = <LED_COLOR_ID_GREEN>;
+                    function = LED_FUNCTION_LAN;
+                    linux,default-trigger = "netdev";
+                };
+
+                led@1 {
+                    reg = <1>;
+                    color = <LED_COLOR_ID_AMBER>;
+                    function = LED_FUNCTION_LAN;
+                    linux,default-trigger = "netdev";
+                };
+            };
         };
     };
-- 
2.43.0